Folder device for wrapping-machines.



L M. 'PIEH'CL FOLDER nvfCwoR WBAPMNG MACHINES.

Patented Oct.' 30, -1917. 3 SHEETS-SHEETI F. IM. PIERCE. FOLDER DEVICE FIJR WHAFPING MACHINES.

Patented Oef. ,30, 19.17.

APPLICATION FILED FEB. 2l. 191'6.

F. M. PIERCE. y FOLDER DEVICE FR WHAPPING MAQHYNES.

\ APPLIcArloN mm rialzi, 1911i". I 1,244,541 Patented Oct. 30, 1917.

f5 SHEETS-S HEET 3.

' is a full, clear,

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FRANK M.' PIEOE, OF-CHICAG'O, ILLINOIS, ASSIGNOB T0 PI'IEBCE WRAPPING MACHINE COMPANY, A CORPORATION OEILLINOIS.

1,244,541.- rizlnal application med November 26 Cook and State of Illinois, have 'invented' certain new and useful Improvements in Folder 4Devices for Wrapping-Machines; and I do hereby 'declare that the following being'had to the accom..

same, reference end to the numerals of panying drawings, reference marked thereon, part of this specification.

This invention constitutes a division ofmy co-pending application for double wrapper wrapping machines, filed November 26th; 1915, Serial No. 63,502.

This invention relates' morepa-rticularly u 'to an improved type of folder plate for ise I ping material 1s drawn for ap 30 in lcohlunction 'with which th'e paper material is drawn constructl en improved type of folder device 4 mounted resiliently andjinan angled position upon a revolubleshuttle to receive aI lstrip ofwrappinmaterialy drawn`there- ,tef I'IlaIg-US O the wrap l` ingnmaterial as it" is fed from the folder on=the revolving shuttle of--the wrapping machine4 through which the paper or wrapplication tol an annular 'object' such .as a tire or coil of wire, wherebyfthe material is folded 'and creasedalong eachof itsl margins immedi ately prior to its application upon thearticle being wrapped. i

It is an object therefore of this invention to provide a 4 a'tension mechanism throng prior to its introduction 'through the. folder device whereby the opposite marginsofthe stripfare folded the ar-ticle.' v

n Itis ain object therefore of this,V inventionto through to fold evice to the article bein wrapped.4

'an objectfo f It is also lder device constructed-to 1re- -nto and as' said stripis 'passed therethrough actin 'to foldthe 4nuiriiis thereofover-so 4that 'tghe strip astapplie 4to an article-being Spcciiication of Letters Patent.

'war y 'beneath the strip,

and exact description of thel which form a folder device pivotally and resiliently mounted upon a shuttle and u sed' as the same is applied lin 'ion- "inF-ig-Zr-f y is top plan. View 'of the s li'uttle Fig. 6 'fis his, inve tion- 'to IFOLIDEB DEVI'CE FOB WRALPPING-MAGHINES.

'Patented oct. 3o, 1917.

191s, semi no. 63.502. Divided and um ppuuauon mea February 21,1916. serialnq; mais. v

.wrap ed has its opposite edgesfolded in thus greatly reinforcing the wrapper ap lied tothe 'article It is' furthermore an importantjobject of this'invention to construct a resiliently ,and pivotally mounted folder device adapted to fold the 'opposite margins' of a strip of wrapping material inwardly toward one another as the stri is drawn therethro h and used in combination with a tension evice 'through which the strip is passed from the reel 'before passage'through the folder device. l It is finally an object of this invention to construct a simple and.: improved ty of folder device pivotally and resilient i mounted at an angle to the shuttle on whic ail the device, is mounted; whereby the strip of wrapping Vmaterial I passed through the folder device -is drawn the point' of application-upon an article in a. correct 1' inor breaking of the strip.

he invention` (in u f preferred forni) VisH illustrated in Vthe drawings and hereinafter more fully described. In the drawingsjz Figure 1 is a fro ping machine provided with a revolub e 'shuttle equipped with 'a' folderj devioefembridy "the Principles of .mrinv'ntion: Fig. 2 js. an Aelevat iona 1 viewfof the-shuttle-fdetached from th'efwra pin machinefwith shawn Figs. 2 ande..

v'thefolder device detached from the shuttle.

taken@ lintjeserving e.`

Fig. F(' i's a rear 'e 6,'- ig.' 8 is aneiid view' o the folder device therefrom' v'toward `'detail 'section taken lon 'line e of movement to. obviate` tearf-ffa'gmentery detail recien, levatioiial view.' of tlief i folder deviceshownfinj'Fiig' Fig. 11 is adetail section taken on line 11-11`of Fig. G.

Fig. 12 is a detail section taken on line ie-ie of Fig. e.

As shown in the drawings:

.The frame of the wrapping machine is Vdenoted :is a ivhole by the reference numeral 1, and suitably'mounted therein to receive a ivrapper applied thereon is an` annular object 2, supported upon means which serve to revolve the object. Revolubly mounted .in the wrapping machine and forming a part thereof, is a circular open ap rev oluble shuttle 3, driven by suitab e nieans to revolve through the eye' of the annular object 2. Mounted perpendicularly upon the front surface of the shuttle 8, is a paper reel 4, from which the strip of paper is led through a tension device consisting of a plate 5, having a plurality of upright pins 6, thereon, around which the paper strip is -led and from the tension device to and through the folder device from which it is drawn with its margins folded for application around the article being wrapped. Said folder device consists of a flat late 7,

Y one end ofwhich is of reduced ivic th dile to the provision of notches S, thereinand with the other end of said plate curved and bent around to afford a cy indrical portion 9. Another plate 10, is attached to and spaced from said plate 7, with the margins 11, of said plate 10, bent inwardly in a conical manner, so that the same convergetoward the reduced end of the plate 7, and with'a portion 12, of said margins flattened and riveted fiat against the surface of the late 7, by rivets 13. As clearlyr s hoivn in ig. 7, seid plate 10,. is provided with small slots 14,' therein, through which access is had for riveting the tivo plates together and a large slot 15, is provided centra ly of said plate 10,`through which access may be had to the wrapping strip passing` therebeneath as, lfor instance, in initially threading the end of the ivra) ing strip through the folder device. l`lie c lindrical portion 9, of the folder device a ords a means of'atvtachment thereof upon the shuttle 3, and

`tained thereon. As clearly shown in ."ig. 2,

a sto in20 is provided on said plate 5 to liiiiit? theV utward swing Vof the falde.z device.

A flat As clearly shown in Figs. 2, 3, and l, another reel of wrapping material 21, is provided upon tha shuttle Il, which may be of the saine or dil'i'crcnt material from the rcel fl, described, and the strip of material drawn therefrom is led through a tension device 2Q, and thence around a frnstro-conical roll 2f: to the article being wrap led.

The operation is as follows:

The sti-ii of wrapping material 4, after being led roin the reel through the tension device 5 6, is led around the rounded cylindrical extension 9, of the folder device and then threaded therethrough between the plates 'i' and 10` The flaring portions 11, of the plate 10, which extend over the edges of the plate 7, serve to turn the margins of the strip of material 4, inwardly.' so that the saine are folded beneath the strip as the saine is applied upon thel article. The construction of the folder device and the inaniier in which it is mounted, permits the sinne to readily adapt itself to .practically :in v conditions of wrapping, that is, for articles of dill'erent size and as ivell takes care of tli'e effects of high speeds of operation of the machine. The pivotal mounting of the folder device upon the inclined bolt 18, permits a certain movement of the folder device and the tilt to the device, due to the angled position of the bolt, insures a proper feeding direction of the strip drawn through the device to the article. Furthermore, the curved portion of the plate 7, leading to the cylindrical portion 9, )rovides a somewhat resilient structure, so that a slight'. warping movement of the entire folder device may take place during a wrapping operation, so that the folder device readily accommodates itself to all conditions of wrapping, obviating any possibility if tearing the strip passing tlieicz'imigli.

I ani avvera i; if iarious details of construction mij: be varied through a Wide range without departing from thc principles of this invention, and I therefore do not purpose limiting the patent granted otherwise than necessitated by the prior art.

I claim as my invention:

1. A folding device comprising a plate having one end formed into a cylindrical. portion andthe opposite end having o positely disposed notches, a tapered plate iaviiig both edges flared to provide tapered conical members and iatteiied portions and means attaching the flattened portions to .ie first named plate.

2. A folder comprising a fiat guide plate,

a retaining late having its edges flared to fold both sic es of a. strip of paper and then flattened to encrage against and space the plates apart and means for ri idly attaching the fiat-tened parts to the gui e plate.

. 3. A folder comprising a guide plate formed to provide a cylindrical portion at one end and notched at its opposite end, a i In testimony whereof I heve hereunto sub'L retaining plate spaced therefrom, tapered scribed my name in the presence' of two sub conical folders at opposite edges of the soribing `Witnesses.'

plates having the outer ends vflattened into FRANK M. PIERCE. smid notches in the guide plate to provide a Witnesses: space equal to the space `between said plates. 4EARL M. HARDINE,

and means securing the plates together. Y GEORGE R. Moonn. 

